chore: update scripts/update-cocoa.sh to 9.12.0 (#6073) #3276

Job	Run time
bundler-plugins	20s
wizard	21s
sample-rn	3m 57s
android	26s
maestro	1m 19s
javascript	18s
cocoa	23s
cli	18s
sentry-android-gradle-plugin	18s
	7m 40s

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